Description

The Cat Pumps Model 350 is a high-performance, frame-size 5 plunger pump, widely regarded as a workhorse in the industrial cleaning and car wash sectors. It is a triplex (three-plunger) reciprocating pump that delivers smooth, constant flow and is designed for long-term, continuous-duty applications.

Technical Specifications

• Flow Rate: 5.0 GPM (19.0 LPM)

• Pressure Range: 100 to 1500 PSI (7 to 103 bar)

• Speed: 1725 RPM

• Shaft Diameter: 20 mm (Solid Shaft)

• Inlet Port: 1/2″ NPT(F)

• Discharge Port: 3/8″ NPT(F)

• Crankcase Capacity: 18 oz.

Key Features

• 5PFR Series Construction: Built with a high-strength, chrome-moly crankshaft and oversized bearings to handle the mechanical load of 1500 PSI at 1725 RPM.

• Solid Ceramic Plungers: Features precision-polished alumina ceramic plungers that provide a diamond-hard, smooth surface. This reduces friction and significantly extends the life of the high-pressure seals.

• Direct Drive Capability: At 1725 RPM, this pump is perfectly matched for direct drive via a flexible coupler to a standard 4-pole electric motor, though it is also commonly belt-driven.

• Superior Seal Design: Utilizes Cat Pumps’ signature “Wick” design (Low-Pressure Seal) which helps lubricate the plungers and keep the high-pressure seals cool during operation.

Standard Service Kits

To maintain the Model 350, ensure you use the correct factory-spec kits: